**Use and Operation**.  Lessee shall operate the Aircraft in accordance with the provisions of Part 91 of the FAR and shall not operate the Aircraft in commercial service, as a common carrier, or otherwise for compensation or hire except to the extent permitted under Sections 91.321 and 91.501 of the FAR, if applicable.  Lessee shall be solely and exclusively responsible for the use, operation and control of the Aircraft at all times during which the Aircraft is in Lessee’s possession during the Term.  Lessee agrees not to operate or locate the Airframe or any Engine, or permit the Airframe or any Engine to be operated or located, in any area excluded from coverage by any insurance policy in effect or required to be maintained hereunder with respect to the Airframe or Engines, or in any war zone.  Lessor shall keep Lessee informed of changes in the requirements of any such insurance policy.  Lessee agrees not to operate the Airframe or any Engine or permit the Airframe or any Engine to